Automatic gearing device.



UNITEE STATEd JUDSON snoEcRArr, or izsxn'inonxanszisy AUTOMATIC sesamenay-ace.

Application filed NbvemberQ, 1905. Serial Ho. 286,479.

To all whom it may concern:

Belt known that I, Jonson SHoEoRAFr, a citizen of the United States,residing at Eskridge, in the county of Wabaunsee and State of Kansas,have invented a new'and' useful Improvement in Automatic GearingDevices, of which the following is;a specification.

' In Patent N 0. 795,864, granted to me'Au gust 1, 1905, forimprovements in reversingmechanism I haveshown a reversible motoradapted to actuate a si nal devicein two direturned to;

rectlons, the signal device bein normal position by the force oigravity. In the gearing therein shown, however, thesig nal device inreturning to normal position also turns the armatureof the motor,making, as it were, a dynamo out of the motor,

: tion without operating the motor during such return, whereby much lesscurrent willbe re. quired in the operation of devices of this kind thanheretofore, and; although reference is made to the Patent No. 795,86etit is to be understood that such reference is made for the purpose ofillustrating more clearly the present invention and that I do notconfine its use to 'a conjunction with the mechanismdescribed or claimedin that patent.

,The invention consists of the parts, improvenients, and combinationsparticularly pointed .outand claimed herein.

In the drawings accompanyin Land forming part of this s ecificationanYin the description of the rawings i have illustrated the invention inits preferred form and have shown the best mode of applying theprinciples thereof; but it is to be understood that the invention itselfis not confinedv to these drawings andthe description of the.drawings,.that it maybe applied to other uses, that parts andcombinations thereof, as herein separately claimed, may be used inconnection with other devices of a similar general nature, and that Icontemplate changes in form, proportions, material, arrangement,

Specification of Letters Patent.

of equivalent members Without, departing from the s irit of theinvention.

In the rawings, Figure 1 is. anelevationj view from one side. Fig 2 is asimilar view, of the opposite side. Fig. 3 is an er-1d or edgeelevation. Fig. d is a vertical section show-- in the bearings for-the.n1otor-armature,-;-

ta en approximately through the line" 4 41 of Fig. 2. Fig. 5 shows theslot in the late. at one end of the. armature, through whic the shaftextends, which allows of a slight verticalinotion. I u

- Like referencenumerals indicate like or, corresponding partsthroughout theseveral views.

1 is a standard, and 2 is the permanent field of the reversible motor,and 3 is the rotating armature on shaft 4. 5 6 are thecommutator-brushes, and Z 8 thebrush-holders, respectively. One end ofthe armature-shaft, has its bearing in the plate 9. The other end .75extends through the vertical slot 1'1 of late 10 andhas its bearing inthe slot :13 of ever 12, which is ivoted-to spindle 14in bracket, 15.Oneend of the lever is provided withja weight 16 andthe otherwith anarmaturebar 17. .This baris normally out of the field of the electromanet-18., ,mountedon bracket 19, secured to p ate 20, but is ada ted tobe brought within such field and to e 'held by the magnet whenever theweighted .endof the 5 lever 12 is raised andthearmature-bar low; cred,as will be hereinafter explained. Se cured to the same end of-thearmature-shaft 4 is a pinion 21, which normally meshes with .a gear 22which is mounted eccentrically "on, 9

shaft 2a,; extendingbetweehf'plate 1- and";

bracket 2,4. Normally, too, .said pinion' isj out of gear with the gear25fonshaft2 tending between plate 1 andlbracket27 carrying also ap1nion28, meshin I large gear 29 on, shaft 30,,whichja so carre v thesignal device, here shown as a'semaphore- 1 blade 31. ,,The weight 32issonred'to' the" large gear 29 toliold it and the signal device innormal position, 'here 'sho n'n asv danger.

To a plat-eorstandardEO, secured remand;

is a block 33 of'insulation, to't'heop'posite* ends of which are securedthe contact-springs 34 and 35, respectively,makin and bifeiiking' xqcontact at 36. Normally. the contact. i closed at 36; but it will bebroken nh'eneverfi tran sposition of parts, and the substitution 1 thesignal-blade 31 iseitherra'ised orlowered,

thereby bringing rods 38 or -37 respectively into engagement with spring35. I

. 39 IS a resistance-coil.

Thecircuit through the apparatus may be traced as follows through wire40,1nagne-t 18, wire 41, spring-35, contact 36, spring 34,

Supposing the circuit to be closed through the apparatus, the operationmay be explainedas follower As the pinion 21 is rotated w th thearmature and armature-shaft it is raised by reason of the cam-likeaction of the eccentricgear 22, and with it is raised -the weighted endof the lever 12, while the armature end 17 is depressed toward themagnet1.8. The pinion, together with these other-parts, iselevated'un'til atabout the point of the longest radius of the eccentric the pinion 21 isbrought-into complete engagement with the gear 25 and the armaturear'17is brought within the ma neti'c field of the magnet 18. Thereupon, tir25, 28, and 29, the signal device will be raised or lowered, accordingto the direction of the flow of current through the armature. furtherrotation ofthe pinion 21 will release the eccentric 22, which will fallto its normal position with the longest radius down, the short radiusup, so as to be out of engagement with the pinion 21, and said pinion 21will be held in complete engagement with gear 25 by reason of the actionof magnet 18 on armature-bar 17. When the signal-blade has been drivento its extreme'position, either up or down, the circuit will be brokenat 36 by reason of either 37 or 38 engagingwith 8 ring 35,-and'thecircuit will be shunted t or fchoke coil 39. This cuts off the currentenough to stop the motor, but allows enou h current to pass to hold-themotor and tie signal jblade in the position to which it has been drivenand also to hold down the armature bar 17. When the signal-gears aredriven, it is of "course to be seen that they work-against theiweight ofthe weight 32. 'Now when the circuit is broken again the armature bar 17is immediately released,

which permits the other end of the lever 12 to' drop to normal position(with pinion 21 in engagement with eccentric. 22 and out of gear withgear 25) and at the same time the Wei ht 32 is permitted to restore thesignalbla e to normal position, and this restoring is accomplishedwithout, as heretofore, rotating the armature of the motor.

Obyiouslythe intermediate gears 25 and 28 may be dispensed with if it benot desired to gear up the mechanism to such an extent,

This is a noro'ugh gears The ough the shunt-circuit 44 and resistance.-

crease in which case the larger gear would be substituted for 25.Obviously, too, the 'eccen-' trio 22 may be without teeth, as aneccentric-.

ally-mounted friction-wheel or' any suitable cam-like actionsubstitutedtherefor. 1

1. The combination-of a motor-shaft normally out of engagement with themechanismto bedriven, a cam-like device normally engagin the shaft andadapted on rotation,

of the shaft to bring same into engagement with the work, a leverconnecting the shaft and'an armature-bar, and an electroma net incircuit with the motor for holding the s aft in engagement with the workf 2. The combination of an electric motor,

mechanism adapted to be driven by the rotary member thereof but normallyout of engagement therewith, a cam-like device to bring the rotarymember into enga emen't with the work upon the rotation of sai member,and an electromagnet adapted normally not to actuate said member butalso adapted to hold it in engagement with the work after gaving beenbrought there by saideazm-hke evice.

3. The combination of a motor, mechanism adapted to be driven by therotary member thereof but normally out of engagement therewith, aneccentric normally engaging -said.rotary member and adapted on rotationthereof to bring said rotary member into en-' gagement with the drivenmechanism aforea said, and an electromagnet adapted to hold, said rotarymember in engagement with said driven mechanism.

4. The combination of a motor, a pinion on the armature-shaft, aneccentric normally engaging the pinion, gearing to be driven by thepinion but normally out of engagement therewith, rods 37, 38 tobreak'the motorcircuit, a shunt including a resistance-coil around saidcircuit-breaker, a pivot-ed lever 12 engaging the shaft, anarmature-bard? on said lever, an electromagnet 18 in circuit with themotor.

' 5. The combination of a reversible mot-or, mechanism adapted to bedriven thereby and having means independent of the motor for restoringit to normal position, an eccentric normally engaged by the motor andadapted 011 rotation thereof to bring the motor into engagement with thedriven mechanism aforesaid, and an electromagnet controlled by themotor-circuit for holding the motor in engagement with said drivenmechanism and adapted on breaking circuit to permit said motor to go tonormal position out of enga ement wit-h said driven mechanism, where bythe said mechanism isby its independent means restored to normalposition without turning the motor.

6. The combination of a reversible motor,

a motor-circuit including a circuit-breaker, a

shunt around the breaker including a resistnormally engaging aneccentricand out of en-' since-coil, a pinion oeri'ied by the inotor-sheftgagernent With the mechanism to be driven, an eccentric adaptedon'rotation of the motor-shaft to carry the pinion into engagement withsaid driven mechanism, an electromagnet controlled by. themotor-circuit, an armature therefor normally but of the field thereof, arod connecting the armature-With the pinion, said rod being adapted tobring the ermature'into the fie'ld of the magnet by the operation of theeccentric with said pinion;

together, with means independent of motor-for restoring said, drivenmechanism to normalposition upon breakingthe -1noto'rr5 circuit.

In testimony whereof I have hereunto signed my name in the presence ofsubscribing witnesses.

JUDSON SHOECRAET.

Witnesses:

JOHN A. HULIT, Z. T. FISHER.

